NETGEAR MBM621 user manual Setting up the Modem as a DHCP Server

Mobile Broadband Modem MBM621 User Manual

The following table explains the settings on the LAN IP Setup screen.

Table 3-1. LAN IP Setup Screen Settings

Settings	Description
LAN TCP/IP Settings	The LAN IP address of the modem.
	• The LAN IP address of the modem.
	• IP Subnet Mask. The LAN Subnet Mask of the modem.
	Combined with the IP address, the IP Subnet Mask allows a
	device to know which other addresses are local to it, and which
	must be reached through a gateway or modem.
Use Modem as DHCP Server	A Dynamic Host Configuration Protocol (DHCP) server assigns IP,
	DNS server, and default gateway addresses to all computers
	connected to the modem’s LAN. See the following section.
Address Reservation	Specify a reserved IP address for a computer on the LAN, so that it
	always receives the same IP address when it access the modem’s
	DHCP server. See “Reserved IP Addresses”.

Setting up the Modem as a DHCP Server

A Dynamic Host Configuration Protocol (DHCP) server assigns IP, DNS server, and default gateway addresses to all computers connected to the modem’s LAN. IP addresses are assigned to the attached PCs from a range of addresses specified in this screen. Each address is tested before it is assigned to avoid duplicate addresses on the LAN.

For an explanation of DHCP and help with assigning IP addresses, see the link to the online document in “Internet Networking and TCP/IP Addressing” in Appendix B.

To set up the modem as a DCHP server:

1.On the LAN IP screen, select the Use router as DHCP server check box.

2.Specify the range of IP addresses to be assigned by filling in the Starting IP Address field and Ending IP Address field.

These addresses should be part of the same IP address subnet as the router’s LAN IP address. Using the default addressing scheme, you should define a range between 192.168.1.2 and 192.168.1.100, although you might want to save part of the range for devices with fixed addresses.

3.Click Apply to save your settings.

The modem delivers the following parameters to any LAN device that requests DHCP:

3-6 Advanced Settings

v1.0, September 2007